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06-18-2013, 04:16 PM #1
Best way to maintain slightly acidic, soft water conditions?
I am getting ready to set up my first community freshwater aquarium (29-40 gal). Many of the fish I would be interested in choosing from prefer slightly acidic, soft water conditions. My question is what is the best way to maintain the acidity and soft water? My water from home is neutral in all respects and I do have an RO/DI system (my husband has a saltwater aquarium we bought this for). I also plan to make this a planted aquarium if this makes a difference. If I'm leaving out helpful info just let me know!
06-18-2013, 06:51 PM #2
Honestly, when it comes to most fish now a days, they are bred in the home aquarium. Unless you are looking at wild caught fish, the need to match ph and tds is only relavent when breeding fish like Discus (and thats only sometimes). What fish are you wanting that require these parameters? Ro/Di water might hurt the plants with lack of nutrients that the ro takes out... Instead I would just use the discharge from the unit which has been dechlorified for you.
06-18-2013, 07:23 PM #3
Thanks for the info! I am definitely going to be putting some species of cory cat into the tank (not sure which yet). I am considering some rams, chocolate gouramis, or hachetfish...but haven't decided for sure. I am waiting for a reply from my local aquarium and livestock supplier as to the source of the fish (I know that many of their saltwater fish are wild caught). I can be a very literal person so when looking at the parameters for different water conditions for fish should I be thinking of those parameters more as guidlines than strict numbers?
06-18-2013, 07:26 PM #4
I so disagree with this common sentiment!! I've seen time and time again how these common tank bred species perk up and colour up when their water is softer. Especially when there's an RO system already in the house there's no reason not to do it.
Get a baseline on your tap water. Depending on that you can mix with part RO or go for all RO. If the latter then you need a good buffering salt mix. Anyone going to work with RO water will really appreciate an handheld TDS meter (check ebay!). Your aim is to create a water mix with a stable but low hardness, let's say about 50-60ppm on your handheld meter for starters. Now when you do get your fish after you cycled the tank you will need to drip acclimatize the fish.
Acidity can be done in various ways, leaf litter will help, peat in the filter is another common way (have a look here http://www.seriouslyfish.com/for-peats-sake/ and see if you can get the coconut based alternative)
Plant's won't mind. Ok, initially you'll get some melt, especially on crypts but they will certainly adapt. A good plant substrate capped with something nice to look at it will provide a lot of nutrients and you can always add some more to the water column (but this will also add to the TDS so do take that into account)
06-18-2013, 07:41 PM #5
Thanks for the links! I saw the peat doing some research and that will be easy to do with a canister filter. My husband may have the meter but I have to check! Great advice! I've learned how to drip acclimatize from him as well with the saltwater tank. Thanks for the link too!
06-18-2013, 08:06 PM #6
If he's succesfull with his tank then he can be a lot of help. Buffering RO for freshwater is basically the same thing he does with marine salt (only much lower levels of course!)
There's only one big differnece between fresh and marine, marine tends to use live rock as filtration, we use filters.
06-18-2013, 08:18 PM #7
another method of lowering ph (especially with plants) would be a co2 injection.... but then again im one of the people who think fish require stable living conditions verses ideal conditions. for most of the fish you mentioned, neutral water should be fine with them. especially if you buy them from a LFS, they are working with the same water conditions as you so the fish will be adapted to that water.KING OF THE GOLD BARBS RAWR!!!!
I wonder if i plant one of my tiger barbs would the demon seed grow to a full tree?
gotta love them bunnies!
I.R.S.: We've got what it takes to take what you've got!
06-18-2013, 10:05 PM #8
To the OP. I still stick with my origional comments. It is not manditory to go through the lengths of an RO system. You have a lot of versatility at your hands but its not something that should really hurt the fish you want to keep. The most important thing is a stable water chemestry as genocidex brought up.
You want to be able to replicate your water changes day in and out. Also, depending on your tap water, you may be ok going neutral and the discharged water from the RO unit will be detoxed of the major additives that cause hardness counts. If im wrong with that, please correct me.
Last edited by Sandz; 06-18-2013 at 10:08 PM.
06-18-2013, 10:18 PM #9
+ to Sandz and with no disrespect to TD, IMO once you start messing with PH you're in for a constant battle to achieve stability. Fluctuating PH (which you are certain to have once you start altering it) is much more harmful to fish than a PH that might be a bit outside the fish's preferred range. For example - PH in my LFS water runs 8+. Mine is 7.2. I merely drip acclimate. My fish and the LFS fish all adapt and thrive in the environment once they are acclimated.30 g FW planted:corys, ABNP, blue angel, harleys, zebra danios, rummies, mystery & nerite snails
15 g FW planted:crown tail betta, neons, pygmy cory, clown pleco, mystery & nerite snails
90 g FW planted:congos, rainbows, roseline sharks, swordtails, krib pair, ABNP, peppered cories, mystery snails
90 Gal Journal: http://bit.ly/1vC7gVX
fishless cycling: http://bit.ly/1DARf3T
fish in cycling: http://bit.ly/1ILvcfp
06-18-2013, 11:47 PM #10
There are a few different schools of thought about maintaining the perfect or a target pH vs maintaining a stable ph. But I'm guessing you have already figured that out by the above posts. Both approaches can be made to work well for almost any set-up. You just have to go with the approach that you are more comfortable with. Take your time, do some reading, and decide for yourself.
RO water with additives is certainly a good option. Be careful using the hubby's TDS meter tho. Many of those are used in the marine aquarium hobby to confirm 0 tds in water so they may not be capable of accurately measuring the higher levels of TDS that you might be targeting. Just something to double check if you go that route.
I would also suggest staying away from using the RO waste water. After the system gets back-flushed (common maintenance practice for marine hobbyists) you can get chlorine in the wast water depending on how the RO unit is set-up. It's not very common, but also not worth the risk IMO.
Last edited by Cliff; 06-19-2013 at 11:05 AM.If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
"Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
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